@using System.Text.Json
@using Microsoft.AspNetCore.Authorization
@using Microsoft.AspNetCore.Components.Authorization
@using Moonlight.Frontend.Interfaces
@using Moonlight.Frontend.Models
@using Moonlight.Frontend.Services
@using ShadcnBlazor.Sidebars

@inject NavigationManager Navigation
@inject IAuthorizationService AuthorizationService
@inject FrontendService FrontendService
@inject IEnumerable<ISidebarProvider> Providers

@implements IDisposable

@{
    var url = new Uri(Navigation.Uri);
}

<Sidebar Variant="SidebarVariant.Sidebar" Collapsible="SidebarCollapsible.Icon">
    <SidebarHeader>
        <SidebarMenu>
            <SidebarMenuItem>
                <SidebarMenuButton>
                    <a href="/" class="flex flex-row items-center">
                        <img alt="Logo" src="/_content/Moonlight.Frontend/logo.svg" class="size-6"/>
                        <span class="ms-2.5 text-lg font-semibold">@FrontendConfiguration?.Name</span>
                    </a>
                </SidebarMenuButton>
            </SidebarMenuItem>
        </SidebarMenu>
    </SidebarHeader>

    <SidebarContent>
        @foreach (var group in Items.GroupBy(x => x.Group))
        {
            <SidebarGroup>
                @if (!string.IsNullOrWhiteSpace(group.Key))
                {
                    <SidebarGroupLabel>
                        @group.Key
                    </SidebarGroupLabel>
                }

                <SidebarGroupContent>
                    <SidebarMenu>
                        @foreach (var item in group.OrderBy(x => x.Order))
                        {
                            var isActive = item.IsExactPath
                                ? item.Path == url.LocalPath
                                : url.LocalPath.StartsWith(item.Path, StringComparison.OrdinalIgnoreCase);

                            <SidebarMenuItem @key="item">
                                <SidebarMenuButton IsActive="@isActive">
                                    <Slot>
                                        <a href="@item.Path" @attributes="context">
                                            <DynamicComponent Type="item.IconType"/>
                                            <span>@item.Name</span>
                                        </a>
                                    </Slot>
                                </SidebarMenuButton>
                            </SidebarMenuItem>
                        }
                    </SidebarMenu>
                </SidebarGroupContent>
            </SidebarGroup>
        }
    </SidebarContent>

    <SidebarFooter>
        <NavUser/>
    </SidebarFooter>
</Sidebar>

@code
{
    [CascadingParameter] public Task<AuthenticationState> AuthState { get; set; }
    
    private readonly List<SidebarItem> Items = new();
    private FrontendConfiguration? FrontendConfiguration;

    protected override async Task OnInitializedAsync()
    {
        var authState = await AuthState;
        
        foreach (var provider in Providers)
        {
            var items = await provider.GetItemsAsync();
            
            foreach (var item in items)
            {
                if (!string.IsNullOrWhiteSpace(item.Policy))
                {
                    var result = await AuthorizationService.AuthorizeAsync(authState.User, item.Policy);
                    
                    if(!result.Succeeded)
                        continue;
                }
                
                Items.Add(item);
            }
        }
        
        Navigation.LocationChanged += OnLocationChanged;

        FrontendConfiguration = await FrontendService.GetConfigurationAsync();

        Console.WriteLine(JsonSerializer.Serialize(FrontendConfiguration));
    }

    private async void OnLocationChanged(object? sender, LocationChangedEventArgs e)
    {
        try
        {
            await InvokeAsync(StateHasChanged);
        }
        catch (Exception)
        {
            // Ignored
        }
    }

    public void Dispose()
    {
        Navigation.LocationChanged -= OnLocationChanged;
    }
}